CN103743021A - Discontinuous fin-separated heat pipe new fan and production method thereof - Google Patents
Discontinuous fin-separated heat pipe new fan and production method thereof Download PDFInfo
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- CN103743021A CN103743021A CN201410031892.1A CN201410031892A CN103743021A CN 103743021 A CN103743021 A CN 103743021A CN 201410031892 A CN201410031892 A CN 201410031892A CN 103743021 A CN103743021 A CN 103743021A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention relates to the field of new fan machinery, in particular to a discontinuous fin-separated heat pipe new fan. The discontinuous fin-separated heat pipe new fan comprises a condenser and a evaporator. The condenser is located above the evaporator. The upper end of the condenser is connected with the upper end of the evaporator through a steam riser. The lower end of the condenser is connected with the lower end of the evaporator through a condensate downcomer. Each of the exhaust opening of the condenser and the new air feed inlet of the evaporator is provided with an axial flow fan. The fins of the condenser and the evaporator are divided into two parts which are in left-right staggered arrangement, and the part with more fins is disposed on the air inlet side. By dividing the fins into two parts in left-right staggered arrangement, air turbulence can be generated at the staggered parts of the fins, air speed is reduced, turbulence heat exchange intensity is increased, heat exchange is intensified, and good heat exchange effect of the whole heat exchange element is achieved while metal consumption and heat exchange area are not increased; air speed is lowered to increase heat exchange time, and air and work medium heat exchange efficiency is increased.
Description
Technical field
The present invention relates to new blower fan mechanical field, specifically new blower fan of a kind of discontinuous fin separate heat pipe and preparation method thereof.
Background technology
At present, room air pollution has become harm humans health " stealthy killer ".Research shows, the degree of room air pollution than the serious 2-5 of outdoor air doubly, can reach surprising 100 times under special circumstances.Expert detects discovery, has more than 500 kind of volatile organic matter in room air, and wherein carcinogenic substance just has kind more than 20, the virus of curing the disease kind more than 200.A large amount of startling facts confirmations, room air pollution has become " the stealthy killer " of harm humans health.According to statistics, the people of the nearly half in the whole world is in room air pollution, and indoor environmental pollution has caused 35.7% breathing problem, 22% chronic lung disease and 15% tracheitis, bronchitis and lung cancer.The data that provide according to Chinese indoor environment monitoring center, the death toll that exceeds the quata that China causes due to room air pollution every year reaches 11.1 ten thousand people, and the outpatient service number that exceeds the quata can reach 4,300,000 person-times.Serious indoor environmental pollution not only causes damage to health of people, and has caused huge economic loss, and only the economic loss that causes because of this respect of China is just up to 10,700,000,000 dollars nineteen ninety-five.
According to < < IAQ standard > >, point out, everyone has 30m by need per hour
3fresh air.And the time of the normal about 80-90% of common people is spent indoor.Along with the raising of material, economic level, air-conditioning has entered huge numbers of families.In air conditioner air after treatment, anion extremely lacks, and that anion is human body is requisite.Air in air-conditioned room is Reusability, and in room, the concentration of carbon dioxide can progressively raise, and causes environmental hypoxia, stuffy, and pathogen easily grows breeding.
In view of the severe air pollution problem inside rooms occurring, existing air clearing product can not solve severe indoor pollution problem from basic solution.Existing product is all air clearing product mostly, this series products can only clean room in original air, but can not be from the new air of outdoor introducing, so cannot fundamentally solve the situation of room air pollution.The best approach that solves indoor pollution problem be exactly the outdoor air exchange of carrying out of indoor introducing to improve IAQ, this is just starved of aeration device.
And the fin position of existing heat exchanger is continuous and continual, for the heat pipe heat exchanging component of the new blower fan of continuous fin, heat exchange efficiency reduces along with reducing of the temperature difference, so in porch heat exchange efficiency maximum.The heat exchange efficiency of heat exchange element can reduce like this, and heat transfer effect is bad.
Summary of the invention
According to above-mentioned weak point, the object of this invention is to provide a kind of heat exchange efficiency high, the new blower fan of discontinuous fin separate heat pipe of good effect of heat exchange.
For achieving the above object, technical scheme of the present invention is: the new blower fan of a kind of discontinuous fin separate heat pipe, it comprises condenser and evaporimeter, condenser is positioned at evaporimeter top, the upper end of condenser is connected by vapor uptake with upper end of evaporator, the lower end of condenser is connected by condensate descending with the lower end of evaporimeter, the new wind air outlet of the exhaust outlet of condenser and evaporimeter is equipped with axial flow blower, the fin of condenser and evaporimeter is the staggered two parts in left and right, two parts fin passes through moulding by casting, and be welded into heat pipe monomer by aluminium flake, wherein, the more part of fin number is arranged at a side of air intake.
Preferably: the fin of described evaporimeter and condenser, adopt structuring optimized calculation method, its intervening portion computing formula is
wherein, y is the distance of air intake porch to fin staggered place, m; D is the width between two fins, m; Δ p is pressure differential, Pa; α is thermal diffusivity, m2/s; μ is dynamic viscosity, Pas.
Preferably: described new wind air outlet place is provided with air processor.
Preferably: described air processor comprises be arranged side by side two independently air-treatment layers, and one of them air-treatment layer is provided with except wet granular, and another air-treatment layer is provided with purification particle.
Preferably: described air-treatment layer is comprised of some little cylinder moulds, wherein, the minimum square hole catercorner length of the grid of little cylinder mould is less than the diameter of corresponding particle.
Preferably: the outside of two described air-treatment layers is provided with draw and insert-type lid end.
The present invention also provides the preparation method of the new blower fan of a kind of discontinuous fin separate heat pipe, and its operating procedure is as follows,
1, the material of making heat pipe is all done to oxidation processes;
2, clean and make heat pipe material requested, thoroughly remove surperficial solid particle, oil stain and oxide;
3, by each material welding;
4, monomer heat pipe is hunted leak;
5, monomer heat pipe is connected into hot-pipe system, carry out system leak detection;
6, heat pipe vacuumizes, and does pressure and keeps experiment;
7, be filled with working medium.
Preferably: inside and outside managing by vapours after the heat pipe after described welding cleans, dry and seal.
Preferably: the leak hunting method of described monomer heat pipe is the heat pipe monomer metallic plate after welding to be clamped to also machinery fix, and puts into water, connects the adapter of heat pipe one end with pressuring machine, and the other end is taken over good seal, then pressurizes and is no more than 2 times of heat pipe pressure-bearing; If there is bubble to produce in water, represent that welded seal is bad, to emitting bubble place to mark, and with the sealing of the encapsulant such as silica gel; If there is no Bubble formation, represent that heat pipe is air tight; Wherein, water temperature is 20-25 ℃.
Preferably: the method for described hot-pipe system leak detection is for tightly welding each heat pipe adapter and house steward, on condenser, connect three-dimensional joint, one end with vacuumize take over is connected, vacuumize adapter be connected with a vacuum valve, a termination vacuum meter on valve, another termination vavuum pump; The upper connecting tube of evaporimeter also connects vacuum meter; Total tube connector encases with heat insulation layer, and system connects takes out required vacuum afterwards with vavuum pump, screws immediately vacuum valve valve, within every 5 hours, observes vacuum meter reading; If more than 36 hours keep pressure constant, represent air tight; Otherwise, represent gas leakage, repeat hot-pipe system leak detection experiment.
Beneficial effect of the present invention is: by the two-part structure that fin design is become to be crisscross arranged, can produce in fin staggered place the disorderly of wind and slow down wind speed, increase on the one hand turbulent heat transfer intensity, thereby enhanced heat exchange, finally make whole heat exchange element when not increasing metal consumption and heat exchange area, obtain better heat transfer effect; Thereby reduce on the other hand wind speed and increase heat-exchange time, therefore increased the heat exchange efficiency of air and working medium.The draw and insert-type air processor of settling at new wind air outlet, air processor comprises dehumidifying and two functions that purify air.The design of draw and insert-type can complete simply and easily the replacing of air processor and clean.Air-treatment can obviously reduce air humidity and purify air, and the lifting of IAQ is had to remarkable result.Especially in the winter time, the evaporator section of indoor hot air can being flowed through, the outdoor cold wind condensation segment of flowing through upgrades and improves room air in the situation that not changing indoor temperature.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is schematic perspective view of the present invention.
Fig. 3 is the structural representation of fin in condenser of the present invention.
Fig. 4 is the structural representation of fin in evaporimeter of the present invention.
Fig. 5 is the assembled state figure of air processor of the present invention.
Fig. 6 is the disassembled state figure of air processor of the present invention.
In figure, 1-condenser; 2-evaporimeter; 3-vapor uptake; 4-condensate descending; 5-axial flow blower; 6-exhaust outlet; The new wind air outlet of 7-; 8-covers end; 9-air-treatment layer; 10-fin; 11-air processor.
The specific embodiment
The new blower fan of the discontinuous fin separate heat pipe of one as shown in Fig. 1-6, it comprises condenser 1 and evaporimeter 2, condenser 1 is positioned at evaporimeter 2 tops, the upper end of condenser 1 is connected by vapor uptake 3 with the upper end of evaporimeter 2, the lower end of condenser 1 is connected by condensate descending 4 with the lower end of evaporimeter 2, the new wind air outlet 7 of the exhaust outlet 6 of condenser 1 and evaporimeter 2 is equipped with axial flow blower 5, the fin 10 of condenser 1 and evaporimeter 2 is the staggered two parts in left and right, two parts fin 10 passes through moulding by casting, and is welded into heat pipe monomer by aluminium flake.Wherein, the more part of fin number is arranged at a side of air intake.Preferably, the staggered degree of two parts fin is 1/2nd positions that a part of fin is positioned at adjacent two spacings of fin of another part.Fin is crisscross arranged, and produces the disorderly of wind and slowed down wind speed in staggered place, increases on the one hand turbulent heat transfer intensity; Thereby reduce on the other hand wind speed and increase heat-exchange time, therefore increased the heat exchange efficiency of air and working medium.New wind air outlet 7 places are provided with air processor 11, and air processor 11 comprises two air-treatment layers 9 that are arranged side by side, and one of them air-treatment layer is provided with except wet granular, and another air-treatment layer is provided with purification particle.Air-treatment layer 9 is comprised of some little cylinder moulds, and wherein, the minimum square hole catercorner length of the grid of little cylinder mould is less than the diameter of corresponding particle.Wherein, except wet granular is silica gel particle, the moist gas in can absorbed air, especially highlights its effect for plum rain season.Purification particle is bamboo charcoal particle, harmful substances such as formaldehyde in can absorbed air, sulfur dioxide, and can discharge natural mineral matter, and can also damping antibacterial, deodorizing fungus-proof, purifies air.The both sides of two air-treatment layers are provided with draw and insert-type lid end 8, are convenient to dismounting to carry out the replacing of air-treatment material.
Complete equipment is made by aluminium, heat pipe discontinuous fin used be mould fill form, be an entirety, switching performance is good, therefore heat exchange thermal resistance is little, heat exchange property is good, can alleviate the weight of equipment.In the middle of two-part fin heat pipe system, by aluminum strip, welded.Because aluminium can generate incoagulable gas--hydrogen with water reaction, therefore material of the present invention all passes through oxidation processes.Considered the many factors such as the applicability of phase-change heat-exchange ability, working medium and stability, working medium is defined as distilled water.
Its intervening portion computing formula of the fin of evaporimeter and condenser is
wherein, y is the distance of air intake porch to fin staggered place, m; D is the width between two fins, m; Δ p is pressure differential, Pa; α is thermal diffusivity, m
2/ s; μ is dynamic viscosity, Pas.
The present invention also provides the preparation method of the new blower fan of a kind of separate heat pipe, and its operating procedure is as follows: 1, the material of making heat pipe is all done to oxidation processes; 2, clean and make heat pipe material requested, thoroughly remove surperficial solid particle, oil stain and oxide; 3, by each material welding; 4, monomer heat pipe is hunted leak; 5, monomer heat pipe is connected into hot-pipe system, carry out system leak detection; 6, heat pipe vacuumizes, and does pressure and keeps experiment; 7, be filled with working medium.
The manufacturing process of heat pipe should be noted that it is compatibility and the maintenance of heat pipe pressure of working medium and tube body of heat pipe.In order to guarantee that tube body of heat pipe does not react with working medium, heat pipe is made material used and has all been done oxidation processes, and opposite heat tube will be managed inside and outside oven dry by vapours after cleaning again after welding, and the sealing of preferably 300K constant temp. drying box, and paper using, prevents inner residual welding thing.
Evaporating temperature >=30 ℃ of heat pipe model machine work, condensation temperature≤27 ℃, the minimum work temperature difference of heat pipe is 3 ℃, how to guarantee that heat pipe can evaporate under the temperature conditions of >=30 ℃ and is the key of prototype fabrication the temperature condensation of≤27 ℃.Wherein topmost is exactly to guarantee that heat pipe intraductal pressure keeps the pressure of designing requirement.Evaporating temperature is lower, and the required vacuum of inside heat pipe is higher.Table look-up to such an extent that water is 0.04865 × 10 at 30 ℃ of required pressure of evaporation
5pa is 0.0423 × 10 at 27 ℃ of required pressure of evaporation
5pa, heat pipe evaporating pressure need remain on 0.0423 × 10
5pa-0.04865 × 10
5pa.
In heat pipe manufacturing process, need to do for twice pressurization leak detection work:
1, the leak detection of monomer heat pipe: its method is the heat pipe monomer metallic plate after welding to be clamped to also machinery fix, and puts into water, connects the adapter of heat pipe one end with pressuring machine, and the other end is taken over good seal, then pressurizes and is no more than 2 times of heat pipe pressure-bearing; If there is bubble to produce in water, represent that welded seal is bad, to emitting bubble place to mark, and with the sealing of the encapsulant such as silica gel; If there is no Bubble formation, represent that heat pipe is air tight.Wherein, water temperature is 20-25 ℃.
2, the leak detection of hot-pipe system: its method, for taking over and house steward tightly welds each heat pipe, connects three-dimensional joint on condenser, one end with vacuumize adapter and be connected, vacuumize adapter and be connected with a vacuum valve, a termination vacuum meter on valve, another termination vavuum pump; The upper connecting tube of evaporimeter also connects vacuum meter; Total tube connector encases with heat insulation layer, and system connects takes out required vacuum afterwards with vavuum pump, screws immediately vacuum valve valve, within every 5 hours, observes vacuum meter reading; If more than 36 hours keep pressure constant, represent air tight; Otherwise, represent gas leakage, repeat hot-pipe system leak detection experiment.
As an example of a new blower fan of discontinuous fin separate heat pipe example, illustrate.
Air is under an atmospheric pressure, and setting indoor air temperature is 24 ℃, and now corresponding air thermal diffusion coefficient is 2.18 × 10
-5m
2/ s, dynamic viscosity is 1.8437 × 10
-5pas; Outside air temperature is 32 ℃, and now corresponding air thermal diffusion coefficient is 2.289 × 10
-5m
2/ s, dynamic viscosity is 1.8829 × 10
-5pas.Between evaporimeter and the fin of condenser, width is identical, is 2.26 × 10
-3m, it is 100m that length is 0.39m axial flow blower flow
3/ h, corresponding pressure is poor is 8Pa.Due to air physical property difference corresponding to different temperatures, so the intervening portion of evaporimeter and condenser is not identical, by formula, calculate, condenser intervening portion y is 0.097m; And evaporimeter intervening portion y is 0.093m.
Heat recovery efficiency ε formula is:
In formula, q
actactual heat exchange amount, q
maxmaximum heat exchange amount, T
einfor evaporator temperature, T
eoutfor evaporator outlet temperature, T
outfor air outdoor temperature, T
infor air indoor temperature.Heat recovery efficiency equals the ratio of actual heat exchange amount and maximum heat exchange amount, because the flow of air is identical with specific heat capacity, so the ratio of actual heat exchange amount and maximum heat exchange amount equals the ratio of the evaporator inlet-outlet temperature difference and indoor/outdoor temperature-difference.Above-mentioned new blower fan keeps 24 ℃ of indoor temperatures in experimentation, 32 ℃ of outdoor temperatures, and its evaporimeter intervening portion is 0.093m, and condenser intervening portion is 0.097m, and heat pipe liquid filled ratio is 40%.By temperature sensor, obtaining the evaporator inlet-outlet temperature difference is 6.6 ℃, and indoor/outdoor temperature-difference is 8 ℃, and by heat recovery efficiency formula, obtaining the now heat recovery efficiency of the new blower fan of discontinuous fin separate heat pipe is 82.5%.The heat recovery rate of the new blower fan of this discontinuous fin separate heat pipe is high.
Claims (10)
1. the new blower fan of discontinuous fin separate heat pipe, it comprises condenser (1) and evaporimeter (2), condenser (1) is positioned at evaporimeter (2) top, the upper end of condenser (1) is connected by vapor uptake (3) with the upper end of evaporimeter (2), the lower end of condenser (1) is connected by condensate descending (4) with the lower end of evaporimeter (2), the exhaust outlet (6) of condenser (1) and the new wind air outlet (7) of evaporimeter (2) are equipped with axial flow blower (5), it is characterized in that: the fin (10) of described condenser (1) and evaporimeter (2) is the staggered two parts in left and right, two parts fin (10) passes through moulding by casting, and be welded into heat pipe monomer by aluminium flake, wherein, the more part of fin number is arranged at a side of air intake.
2. according to the new blower fan of discontinuous fin separate heat pipe claimed in claim 1, it is characterized in that: its intervening portion computing formula of fin (10) of described evaporimeter and condenser is
wherein, y is the distance of air intake porch to fin staggered place, m; D is the width between two fins, m; Δ p is pressure differential, Pa; α is thermal diffusivity, m
2/ s; μ is dynamic viscosity, Pas.
3. according to the new blower fan of discontinuous fin separate heat pipe claimed in claim 1, it is characterized in that: described new wind air outlet (7) locates to be provided with air processor (11).
4. according to the new blower fan of discontinuous fin separate heat pipe claimed in claim 3, it is characterized in that: described air processor (11) comprises be arranged side by side two independently air-treatment layers (9), one of them air-treatment layer is provided with except wet granular, and another air-treatment layer is provided with purification particle.
5. according to the new blower fan of discontinuous fin separate heat pipe claimed in claim 4, it is characterized in that: described air-treatment layer (9) is comprised of some little cylinder moulds, wherein, the minimum square hole catercorner length of the grid of little cylinder mould is less than the diameter of corresponding particle.
6. according to the new blower fan of discontinuous fin separate heat pipe described in claim 4 or 5, it is characterized in that: the outside of described two air-treatment layers (9) is provided with draw and insert-type lid end (8).
7. according to the preparation method of the new blower fan of discontinuous fin separate heat pipe claimed in claim 1, it is characterized in that: its operating procedure is as follows,
(1) material of making heat pipe is all done to oxidation processes;
(2) clean and make heat pipe material requested, thoroughly remove surperficial solid particle, oil stain and oxide;
(3) by each material welding;
(4) monomer heat pipe is hunted leak;
(5) monomer heat pipe is connected into hot-pipe system, carry out system leak detection;
(6) heat pipe vacuumizes, and does pressure and keeps experiment;
(7) be filled with working medium.
8. according to the preparation method of the new blower fan of discontinuous fin separate heat pipe claimed in claim 7, it is characterized in that: inside and outside managing by vapours after the heat pipe after described welding cleans, dry and seal.
9. according to the preparation method of the new blower fan of discontinuous fin separate heat pipe claimed in claim 7, it is characterized in that: the leak hunting method of described monomer heat pipe is the heat pipe monomer metallic plate after welding to be clamped and mechanical fixing, put into water, with pressuring machine, connect the adapter of heat pipe one end, the other end is taken over good seal, then pressurizes and is no more than 2 times of heat pipe pressure-bearing; If there is bubble to produce in water, represent that welded seal is bad, to emitting bubble place to mark, and with the sealing of the encapsulant such as silica gel; If there is no Bubble formation, represent that heat pipe is air tight; Wherein, water temperature is 20-25 ℃.
10. according to the preparation method of the new blower fan of discontinuous fin separate heat pipe claimed in claim 7, it is characterized in that: the method for described hot-pipe system leak detection is for tightly welding each heat pipe adapter and house steward, on condenser, connect three-dimensional joint, one end with vacuumize take over be connected, vacuumize to take over and be connected with a vacuum valve, a termination vacuum meter on valve, another termination vavuum pump; The upper connecting tube of evaporimeter also connects vacuum meter; Total tube connector encases with heat insulation layer, and system connects takes out required vacuum afterwards with vavuum pump, screws immediately vacuum valve valve, within every 5 hours, observes vacuum meter reading; If more than 36 hours keep pressure constant, represent air tight; Otherwise, represent gas leakage, repeat hot-pipe system leak detection experiment.
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|---|---|---|---|
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|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016502A (en) * | 2016-07-29 | 2016-10-12 | 江苏赛诺浦节能科技有限公司 | Refrigeration and fresh air integration type outdoor unit special for water-cooled fungus mushroom house |
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| US3421578A (en) * | 1966-12-22 | 1969-01-14 | Louis L Marton | Heat dissipator |
| DE2809143A1 (en) * | 1978-02-20 | 1979-08-23 | Gea Luftkuehler Happel Gmbh | FIBER TUBE HEAT EXCHANGER |
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| CN203704220U (en) * | 2014-01-23 | 2014-07-09 | 中国石油大学(华东) | Discontinuous-fin separating type heat tube fresh air machine |
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| CN201255596Y (en) * | 2008-08-11 | 2009-06-10 | 丹腾空气系统(苏州)有限公司 | Isolation type hot pipe heat exchanger |
| CN202204076U (en) * | 2011-07-14 | 2012-04-25 | 北京网电盈科科技发展有限公司 | Heat recovery air conditioning cabinet applicable to animal room |
| CN202209737U (en) * | 2011-07-14 | 2012-05-02 | 北京网电盈科科技发展有限公司 | Fresh air handling unit having natural heat recovery function |
| CN102628655A (en) * | 2012-03-22 | 2012-08-08 | 中国科学院工程热物理研究所 | Pulsating heat pipe heat-expanding plate and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106016502A (en) * | 2016-07-29 | 2016-10-12 | 江苏赛诺浦节能科技有限公司 | Refrigeration and fresh air integration type outdoor unit special for water-cooled fungus mushroom house |
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| Publication number | Publication date |
|---|---|
| CN103743021B (en) | 2016-01-13 |
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